Solo Mug Cake 0

Chocolate

Oreo Mug Cake

Cookie-studded chocolate cake with a soft crumb and crushed sandwich-cookie top.

  • Prep 3 min
  • Cook 1m 25s
  • Total 5 min
  • Difficulty Easy
  • Eggless
Oreo-style chocolate sandwich cookie mug cake with crushed cookie crumbs on top

Steps

  1. Crush the cookies in a 12 oz microwave-safe mug until the pieces are pea-size and sandy, not a paste.

  2. Stir in flour, cocoa, sugar, baking powder, and salt so the cookie crumbs are coated and evenly dark.

  3. Add milk, oil, and vanilla. Mix from the bottom until no dry flour remains; stop before the cookie crumbs disappear completely.

  4. Microwave 75-85 seconds. The top should look set with a few moist cookie pockets still visible.

  5. Rest one minute, then add a small pinch of crushed cookie crumbs on top for crunch.

Helpful notes

Oreo is a trademark; any chocolate sandwich cookie works. The added flour and cocoa keep this closer to cake than the common cookie-and-milk shortcut.

Source note

Source-checked against Allrecipes Oreo Mug Cake and Epicurious microwave mug cake technique notes; adapted with flour, cocoa, oil, and baking powder for a more cake-like crumb.

Success guide

Make it work the first time

Expected texture

Expect a soft, spoonable crumb rather than crisp edges. Chocolate mug cakes cook like tiny steamed cakes, so the best cue is a set edge with a slightly soft center.

Success tips

  • Use a microwave-safe mug with visible headroom. If the batter fills more than about half the mug, move it to a larger mug before cooking.
  • Start with the lower end of the microwave time in the steps. Add time in short bursts only if the center still looks wet.
  • Let the cake rest before eating. The crumb keeps setting after the microwave stops, and the mug will be very hot.
  • This recipe avoids a whole egg, which helps prevent the bouncy texture people often dislike in small mug cakes.

Substitutions

Milk
Whole milk gives the softest crumb. Unsweetened oat or almond milk can work, but the cake may taste a little lighter.
Fat
Neutral oil keeps mug cakes moist. Melted butter works in some chocolate or vanilla cakes, but it can make the crumb firmer as it cools.
Flour
Do not assume a direct gluten-free flour swap unless the blend is labeled cup-for-cup; the texture may turn gummy.

Troubleshooting

Rubbery texture
Usually caused by overmixing, overcooking, or too much egg for one mug. Mix only until no dry flour remains and stop at the first set-top cue.
Dry crumb
The cake likely cooked too long. Next time start at the low end of the time range and let rest instead of microwaving until fully dry.
Overflow
The mug was too small or too full. Use more headroom and set the mug on a paper towel if your microwave runs hot.
Wet center
Microwave in one short burst, then rest again. A slightly glossy center is fine; a puddle of batter needs more time.

Variations

  • Add a pinch of instant espresso to make the cocoa taste deeper.
  • Drop extra chocolate chips in the center for a softer spoonful.

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